All-optical transistor created

By (author unknown), Gizmag Emerging Technology MagazineNovember 16, 2010 at 06:26PM

The MPQ/EPFL microresonator, which couples light with vibrations (Photo: EPFL)

Researchers from Germany’s Max Planck Institute of Quantum Optics (MPQ) and the Swiss Ecole Polytechnique Federale de Lausanne (EPFL) have created a microresonator that produces vibrations from laser light. The device also uses one laser beam to control the intensity of another, thus making it essentially an optical transistor. The technology could have big implications in fields such as telecommunications.
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